Packing-can.



G. W. RUGGLES.

PACKING CAN.

APPLICATION FILED FEB. 23, 915.

Patented July 4, 1916.

wbneooe/b d KMM Wm UNITED STATES PATENT OFFICE.

GEORGE W. RUGGLES, OF BALTIMORE, MARYLAND, ASSIGNOB, BY MESNE ASSIGN- MENTS, '1'0 ALBERT S. GILL, NOAH WEBSTER, AND FREDERICK H. FLETCHER,

COMMITTEE.

PAGKING- CAN.

Specification of Letters Patent.

Application filed February 23, 1915. Serial No. 9,808.

To all whom it may concern Be it known that I, GEORGE W. RnceLns, a citizen of the United States, residing at Baltimore, in the State of Maryland, have invented certain new and useful Improvements in Packing-Cans, of which the following is a specification.

This invention relates to improvements in packing cans, and has for its object to provide a can with a top andcap so constructed that the said can may readily be hermetically sealed without the use of solder or similar material.

The invention consists of the novel construction and arrangement of the parts and combination of parts hereinafter more fully set forth in the following specification and pointed out in detail in the claims.

In the accompanying drawings,Figure 1 is an elevation, partly in section, of a packing can showing my invention applied thereto. Fig. 2 is a similar view to Fig. 1, with the cap removed therefrom. Fig. 3 is a detail vertical section of the cap before being expanded in the can.

Referring to the accompanying drawings, forming part of this specification, and in which like reference numerals designate like parts throughout the several views thereof, 1 designates a packing can, which may be of any desired shape, and which is provided with a top 2 soldered to said can and having an opening through which the said can is filled in the process of packing. The metal around said opening is slightly depressed at 4 then bent upwardly at 5 and provided with an annular outwardly projecting flange 6 at the top thereof, which greatly strengthens the metal around said opening. The cap 7 has its upper edge rolled over to strengthen the said cap as well as to form a recess for the gasket 8; the lower end of the said cap 7 being slightly contracted to receive the gasket 9, which latter when fitted in position on the contracted end of the cap has its outer surface flush with the outer surface of the said cap. The gaskets 8 and 9 may be of rubber, cork, or other suitable material.

After the can has been filled, the cap 7 is forced down, by suitable machinery, into the opening in the top of the can with the gasket 8 resting upon the flange 6 and the gasket 9 lmpmglng against the inner wall of the said opening. The lower end of the cap 7 is then expanded, by asuitable tool, which draws the gasket 8 down tightly upon the flange 6 and forces the gasket 9 up tightly between the cap 7 and the side 5 of the open ing, thereby forming an airtight joint be tween the cap 7 and the top 2, and hermetically sealing the can. It will thus be seen that by having the lower end of the cap 2 expanded, as shown in Fig. 1,'it will be absolutely impossible to remove the said cap provided with an opening therein, the metal 7 around said opening being depressed then turned upwardly and provided with a flange on its upper edge, and a cap adapted to fit within'said opening and having its lower end expanded under the depressed edge of 7 the opening of the said top.

2. The combination of a can having a top provided with an opening therein, the metal around said opening being depressed, then bent upwardly and provided with a flange at its upper end, a cap having flanged upper end and a contracted lower end, and having its lower end expanded under the depressed edge of the opening, a disk between the flange of the cap and the flange around the said opening, and a disk on the contracted lower end of the cap.

3. The combination of a can having a top provided with an opening therein, the metal around said opening being depressed then turned upwardly and provided with a flange on its upper edge, a cap adapted to fit within said opening and having its lower end expanded under the depressed edge of the opening of the said top, and a gasket between said cap and said depressed edge of the can opening.

In testimony whereof I aflix my signature in presence of two witnesses.

GEORGE W. RUGGLES.

WVitnesses:

MAUDE M. AMoss, CHAPIN A. FERGUSON. 

